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標題: 51單片機時，分，秒程序 [打印本頁]
作者: HTD    時間: 2018-1-9 20:28
標題: 51單片機時，分，秒程序
51單片機，時分秒程序設計

單片機源程序如下:
  1. #include <reg51.h>//<stc15.h>

  3. #define uchar unsigned char
  4. #define uint unsigned int

  6. void BCSegNum();
  7. void XSSegNum();
  8. void DelayMs(uint n);

  10. uchar Second=59, Hour=8, Minute=13;
  11. static uchar Counter;
  12. uchar flag0=0;


  15. sbit dp=P2^7;
  16. SegNum[]={1,2,3,4};//四個數碼管
  17. SegCode[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90};
  18. BitCode[]={0x01,0x02,0x04,0x08};

  20. void main()
  21. {
  22. TMOD = 0x01;//16位不自動重裝，方式1
  23. TH0 = 0x4c;//50ms
  24. TL0 = 0x00;
  25. ET0 = 1;
  26. EA = 1;
  27. TR0 = 1;
  28. EX0 = 1;
  29. EX1 =1;
  30. IT0 = 1;
  31. IT1 = 1;
  32. P1 = 0;
  33. while(1)
  34. {
  35. BCSegNum();
  36. XSSegNum();

  38. }
  39. }

  41. void BCSegNum()
  42. {
  43. SegNum[3] = Hour/10;//時十位
  44. SegNum[2] = Hour%10;
  45. SegNum[1] = Minute/10;
  46. SegNum[0] = Minute%10;
  47. }

  49. void XSSegNum()
  50. {
  51. uchar i;
  52. for(i=0;i<4;i++)
  53. {
  54. P2=SegCode[SegNum[i]];
  55. P1=BitCode[i];
  56. DelayMs(3);
  57. P1=0x00;
  58. }
  59. }

  61. void T0_Isr(void)interrupt 1
  62. {

  64. TH0 = 0x4c;
  65. TL0 =0x00;
  66. Counter++;
  67. if(Counter<=10)dp = 0;
  68. else dp = 1;
  69. if(Counter==20)
  70. {
  71. Second++;
  72. Counter = 0;
  73. if(Second==60)
  74. {
  75. Second=0;
  76. Minute++;
  77. if(Minute==60)
  78. {
  79. Minute=0;
  80. Hour++;
  81. if(Hour==24)
  82. {
  83. Hour=0;
  84. }
  85. }
  86. }
  87. }

  89. }

  91. void DelayMs(uint n)
  92. {
  93. uchar j;
  94. while(n--)
  95. {
  96. for(j=0;j<113;j++);
  97. }
  98. }

  100. void Ex0Isr() interrupt 0 //選擇鍵
  101. {
  102. TR0 = 0;
  103. flag0++;//flag0=0無鍵按下
  104. if(flag0==3)
  105. {
  106. flag0=0;
  107. TR0 = 1;
  108. }
  109. }

  111. void Ex1tsr() interrupt 2 //加鍵
  112. {
  113. if(flag0==1)//分加1
  114. {
  115. Minute++;

  117. if(Minute==60)
  118. Minute=0;
  119. }
  120. if(flag0==2)//時加1
  121. {
  122. Hour++;
  123. if(Hour==24)
  124. Hour=0;
  125. }

  127. }
復制代碼

所有資料51hei提供下載:
51單片機時，分，秒程序.rar (11.97 KB, 下載次數: 5)






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